Finding the Fourth Proportional to 213,121.47, 294,086.69 and 117,622.00

Step by Step Solution

1. Step 1: Write the proportion equation
   213,121.47 : 294,086.69 = 117,622.00 : x
2. Step 2: Convert to fraction form
   213,121.47/294,086.69 = 117,622.00/x
3. Step 3: Cross multiply
   213,121.47x = 294,086.69 × 117,622.00
4. Step 4: Simplify right side
   213,121.47x = 34,591,062,592.64
5. Step 5: Solve for x
   x = 34,591,062,592.64/213,121.47
6. Step 6: Final answer
   x = 162,306.80